ATV Classes
Side by Sides with turbos may run in classes I,P,Q,and V, Z
A. 0-50cc ATV (13 and under) 2 & 4 stroke
B. 51-125cc ATV (13 and under) 2 & 4 stroke
C. 0-70cc Dirt Bikes (13 and under) 2 & 4 stroke
D. 71-150cc Dirt Bike (13 and under) 2 & 4 stroke
E. 126-250 ATV (13 and under) 2 & 4 stroke. NO 250R
F. 400 and below knobby tire ATV 4 stroke ONLY, must clear 4×4 block
G. 450 and up knobby tire ATV 4 stroke ONLY, must clear 4×4 block, NO turbo SXS, NON turbo allowed
H. 2 stroke knobby tire ATV 2 stroke ONLY
I. OPEN OUTLAW (2 and 4 strokes)
J. 300cc and below Dirt Bikes (2 & 4 stroke)
K. 350 2 stroke modified (NO NOS, super charger’s turbo chargers)
L. 400 and below modified ATV (NO NOS, super chargers, turbo chargers) 4 strokes ONLY
M. 350 2 stroke clutch
N. 450 and up modified ATV (NO NOS, no superchargers, no turbo chargers on quads, no turbo SXS) 4 strokes only
O. 450 and up Dirt Bike (2 & 4 stroke)
P. 4 stroke OPEN- ATV and Dirt Bike SXS
Q. Modified Knobby (No Power adders)
R. 250 OPEN
S. Powder Puff
T. 2 stroke OPEN
U. Utility/Side by side (No Turbo or superchargers)
V. Knobby Automatic (No street bike, snomo or nitro, must have knobby tire)
W. 4.0 Index
X. 450 and up trail class ATV ONLY (4 stroke only, must clear 6×6 block, no forward a arms, no extended swing arms)
Y. 250-300 ATV 4 Stroke ONLY/ 500 and below utilities may run in this class
Z. Open Automatic
ATV Classes
1. classes 1-5 are kids’ classes, no wheelie bars that help you progress down the track, and you must have stock frame.
a. Kids classes (under 13) if you run 4.5 seconds at 200 ft you must have a chest protector or neck harness.
b. If you are under the age of 16 you can NOT run faster than 3.5 seconds in any class at 200 feet.
2. 4 stroke knobby class
a. OEM frame loop required, swing arm can be up to a +2
b. must have working front and back brakes
c. must have shocks
d. No straps/ tiedowns
e. NO wheelie bars
f. stock placed exhaust/ can be aftermarket (must have muffler)
g. full sized woods tires on front and back
h. No Bar tire
i. NO NOS, super chargers, turbo chargers, no nitro
j. no cut tranny (must use clutch)
k. must clear a 4″ block with rider on it. Checked under frame at back of motor
l. 30 seconds to stage after name is called
m. no street bike motors. Must be ATV or Dirt Bike type
n. must have front and rear plastics, can be cut
o. a-arms can be a +2, must have both top and bottom a-arms
p. Bikes must be started by kick start or electric.
3. 2 stroke knobby
a. OEM length frame, swing arm can be up to +4
b. must have working front and back brakes
c. must have shocks
d. No straps/ tiedowns
e. NO wheelie bars
f. stock placed exhaust/ can be after market
g. full sized woods tires on front and back
h. No Bar tire
i. NO NOS, super chargers, turbo chargers, no nitro
j. no cut tranny (must use clutch)
k. must clear a 4″ block with rider on it. Checked under frame at back of motor
l. No cool down time
m. must have front and rear plastics can be cut
o. a-arms can be a +2, must have both top and bottom a-arms
4. 400 and 450 and up Modified
a. OEM length frame- can be modified, No drag frames
b. can have any size swing arm
c. can be strapped
d. can run any tire
e. can have a wheelie bar
f. can have any exhaust
g. NO NOS, super chargers, turbo chargers
5. Trailblazers 250 and blaster 200 can run utility and 350 2 stroke clutch classes
6. Modified Knobby
A. OEM frame length
B. Frame can cut but must have OEM loop
C. a-arms cannot be more than a +3 from stock position
D. Any length swing arm
E. must have front and rear suspension cannot be ridged
F. NO NOS, Supercharger, turbo
G. Must have working front and rear brakes
H. Front and back must be knobby, back can be cut (501, L7, SC3, SC4 allowed)
I. No wheelie bar
J. Any type of pipe
K. Must have plastics, can be cut
L. No air shifter
M. Cut transmission allowed
N. Dirt Bikes allowed
7. 450 and up Trail Rider Class
a. Stock length swing arm, no forward arms
b. MUST clear 6×6 block
c. Airbox with or without lid
d. No Light weight drag parts
e. May have full in frame pipe no pugs
f. May have jet kit or programmer and filter
g. Must have Knobby tires both front and back
h. Must clear a 6-inch block with the rider on it. Checked under frame at the back of the motor
i. Top three bikes will be checked every night.
j. Break out may be determined (example 4.0 at 200 feet-3.5 at 150 feet)
k. No cool down
General Rules
1. Any announcement made on the day of the event supersedes all written material
2. Any rider or ATV/Truck that causes damage to KOI Drag Racing Equipment will be held liable for damages. If you hit any equipment, you are DQ for that round including center line/cones.
3. All riders/drivers must sign a release form before participating in any event.
4. All racers participate at their own risk to themselves and their equipment.
5. Any rider under 18 must have a parent or legal guardian signature on release form
6. ATV & BIKES riders must wear a full faced DOT approved helmet with chin strap strapped NO sandals or slippers
B. ALL truck drivers (except street trucks) Must wear DOT approved helmet. Can be full-faced or open-faced.
C. ALL TRUCKS MUST have seat belts
7. NO STUDDED TIRES/ NO EXCEPTION
8. Nitrous, turbo chargers, superchargers can be used in OPEN classes only. NOS main line must be disconnected in all other classes and tank must be removed.
9. Double or single eliminations determined by entries, (over 100 single elimination)
10. Track will have boundaries. Out of bounds there will be a disqualification this includes cones on center line.
11. When you are called you have 1 minute to get to stage
12. Starting judge’s decision is final
13. For Truck classes- driver must have a valid driver’s license to compete
14. Trucks can be hauled or driven in unless specified
15. KOI Officials reserve the right to make a SAFETY call at any time.
16. NO PIT RIDING! If caught you will be disqualified without warning and asked to leave event without refund. We do this for safety.
17. Vehicles can be teched at any time with pump or scope. Refusal of tech or caught cheating will result in being disqualified from the current event and will not be allowed to participate in any event for 1 calendar year.
18. NO ALCOHOL ALLOWED!! ZERO TOLERANCE
19. All dirt bikes/ motorcycles should have cardboard or disk to catch start beam to prevent red lights.
20. No 2 strokes and 4 strokes run together unless specified.
21. If a participant knowingly enters a class, they do NOT belong in they will be removed without refund.
22. Please note kids receive one trophy per night.
23. On the event of a double red light the worst red light loses.
24. Any quad or bike that runs a 4.0 or faster at 200′ MUST have a kill switch
25. Only one rider per one bike/truck/quad per one class
26. registration closes when eliminations start.
27. ALL quad/bikes’ classes entry fee is $10, truck/car classes entry fee is $10. ALL DIESEL Classes are $20
28. Truck-Payouts are as follows 1-3 100% to first place, 4-9 100% to First and second, above 10 100% to first, second, and third. Payout must be retrieved the night of the event.
29. ATV/BIKES- Payouts are as follows 1-3 100% to first, 4-9100% to first and second, 10 and above100% to first, second, and third. Payouts must be retrieved on the night of the event.
30. Only one person in staging lanes with rider